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Forterra Thermalite Aircrete Tongue and Groove Trench Block
Forterra Thermalite Aircrete Tongue and Groove Trench Block

£6.23

Each

About this product

Forterra Thermalite Aircrete Tongue and Groove Trench Block is an excellent concrete block  for constructing foundations. Or ideal for use instead of a cavity wall requiring a heavy concrete brick or block infill. Thermalite blocks are designed with tongue and groove joints and handholds for easy handling and offer high thermal insulation. They have good compressive strength as well as moisture resistance. They contain up to 80 per cent recycled content. Trench Blocks make life easier as they are slotted end to end and so have no perpend mortar. Lay using a thin-bed mortar technique.

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Forterra Thermalite Aircrete Tongue and Groove Trench Block

  • Insulating concrete block
  • Block size: 440mm(L) x 300mm(D) x 215mm(H)
  • Compressive Strength: 3.6 N/mm2
  • Dry density: 600 kg/m3
  • Dry weight per block: 17.5kg
  • Improves thermal performance
  • Has tongue and groove joints and handholds
  • Use in thin joint masonry
  • Removes the need to mortar perp ends
  • Moisture resistant
  • Fire resistant
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